good project for mechanical student

hi there...

I am a student of mechanical engg. and I have started learning SolidWorks and I want my learning to use it fruitfully in my final year project, so can you suggest me any project related to this, As I am interested in designing based on defence and engine,engine parts or any type of machinery so pl@zz suggest me a good project In the field of mechanical engg. as per my interest.@

thanks for your help.....@

SolidworksGeneral